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Life originated millions of years ago as ________
  • a)
    protobionts
  • b)
    eobionts
  • c)
    coacervates
  • d)
    bacteria
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Life originated millions of years ago as ________a)protobiontsb)eobion...
It was estimated about 3.9 billion years ago that, life originated as Eobionts (protocell). They evolved during the Precambrian era. They were anaerobic as well as heterotrophic in nature.
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Life originated millions of years ago as ________a)protobiontsb)eobion...
Origin of Life as Eobionts
Eobionts are considered as the most probable ancestors of modern cells. They are hypothetical structures that are believed to have existed around 3.8 billion years ago. Eobionts were the first primitive cells that eventually evolved into more complex forms of life.

Characteristics of Eobionts
- Eobionts were simple, self-replicating entities that could carry out basic metabolic processes.
- They were enclosed in a membrane-like structure, which helped in maintaining internal conditions necessary for survival.
- Eobionts had the ability to capture and utilize energy from the environment to carry out essential life processes.

Formation of Eobionts
- Eobionts are believed to have formed from a combination of organic molecules, such as amino acids and nucleotides, in the early Earth's environment.
- These molecules could have come together to form protocells, which eventually evolved into eobionts through a process of chemical evolution.

Evolution of Eobionts
- Over time, eobionts underwent genetic mutations and natural selection, leading to the development of more complex cellular structures.
- This gradual evolution eventually gave rise to the diverse forms of life that we see on Earth today.
In conclusion, eobionts represent a crucial stage in the origin of life on Earth. They provide insights into how simple, self-replicating entities could have evolved into the complex organisms that populate our planet today.
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Life originated millions of years ago as ________a)protobiontsb)eobiontsc)coacervatesd)bacteriaCorrect answer is option 'B'. Can you explain this answer?
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